Hello,
I’m honestly confused on the whole thing on the calcium reactor. Now online it says they monitor and keep alk and mag and trace elements constant. However all my lfs said it only maintains calcium and they you would need to maintain the others. So that has me thinking a lot more of it only does calcium. If all three are wrong, errr that really makes me wonder lol.
I’m curious how often people feed their corals sps and lps mainly and some softies? I just finally was able to pick up reef roids (wow not cheap), but I have used other coral food and well was never consistent with it. I think running super low nutrients may may make them starve.’
Herein lies the challenge with taking advice of LFS employees. I KNOW there are some good ones. I also happen to know of some “reputable” and highly successful LFS that are owned and staffed by people I would barely classify as hobbyists. They essentially just order livestock and gear and keep books while giving questionable advice. Yours may be better, but the advice you were given about calcium reactors would indicate they have zero experience or research on the method, and are advising based on the title only.
As someone mentioned, a calcium reactor is merely a recirculation canister, with flow slowly running through it. Co2 is added to the recirculating water to acidify it. Your media will dictate what you’re supplementing.
Synthetic aragonite? You’re just adding mostly calcium and alkalinity with little to no trace elements
Remag? Pretty much all magnesium with a few other irrelevant elements
Reborn? Coral skeletons and mollusk shell bits. Any element used to create those skeletons is dissolved and added back to the water. Calcium, alkalinity, and many trace elements.
There will still be some things missing for tissue creation and pigmentation. Those elements and compounds are added through feeding.
On my sps heavy mixed tank I run a calcium
Reactor with about 12 pounds of media, at 80 ml/min with a ph of 6.8. I don’t test my effluent dkh. Some swear by that method. I haven’t found it necessary. I still feed heavily. Spot feed all corals 3-4 days a week, feed the fish 2-3 heavy feedings a day. I still export nutrients heavily through vodka dosing and occasional Phosphate rx use. I still find it necessary
To do usually bi-weekly 10-20% water changes.
A calcium reactor is a great method of supplementing, and has a ridiculously high ceiling on what it can add before needing to up size. No method is perfect though and eventually something will require intervention on other levels.



But yeah, when you listen to mp3s the sound is compressed and it doesn’t sound the same. Sounds like you have a good turntable, now you will just have to find the vinyl.

